Things for devs to watch out for if you jump to Mountain Lion.- /Library/Python/ will get wiped out.- You'll need to manually enable user directories in Apache. (The web sharing pref pane is now gone. Instructions here: (http://www.coolestguyplanettech.com/forbidden-403-you-dont-have-permission-to-access-username-on-this-server/)- If you need svn, you'll need to install the latest Dev Tools. From there, load xCode, Preferences, Install Command line Tools. Precompiled svn binaries will not install in 10.8 - The new Dev Tools wipes out /Developer and places all the apps inside the xCode package. Save any apps you've put in there before installing. ﻿